Granted Patent
Utility
US 4,621,797 · App. 06/785,995
Device for orienting an object on a flat surface
Inventor:
Edward T. Ziegenfuss
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: Oct 10, 1985
Inventor
Edward T. Ziegenfuss
Assignee (at issue)
RCA Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.